I-Thermoplastic Elastomers (I-TPE), ngezinye izikhathi kuthiwa yi-Thermoplastic Rubber (I-TPR), ikilasi lama-copolymers noma ingxube ebonakalayo yama-polymers-imvamisa ipulasitiki nerabha-ehlanganisa izakhiwo ze-thermoplastic kanye nama-elastomers.. Le nhlanganisela eyingqayizivele ivumela ama-TPE ukuthi acutshungulwe njenge-thermoplastics (nge-extrusion, ukubumba umjovo, vuthela ukubumba, njll.) ngenkathi igcina ukunwebeka nokuguquguquka kwama-rubber. Ngokungafani namarabha endabuko avuthwe, Ama-TPE angancibilika futhi acutshungulwe kabusha izikhathi eziningi ngaphandle kokulahlekelwa okukhulu kokusebenza, okwenza zibe nobungane bemvelo futhi zingabizi kakhulu. Njengesidingo se-lightweight, evumelana nezimo, nezinto ezigaywa kabusha zikhula ezimbonini zonkana njengezezimoto, kagesi, ukwakhiwa, kanye nezimpahla zabathengi, Ama-TPE asedume kakhulu, ukushayela ukuthuthukiswa kobuchwepheshe obukhethekile be-masterbatch kanye ne-extrusion obuhambisana nezidingo zabo eziyingqayizivele zokucubungula.
I-Masterbatch, njengento ebalulekile yokufaka imibala nokuguqulwa okusebenzayo kwama-TPE, idlala indima ebalulekile ekuthuthukiseni ukusebenza kanye nokwandisa ububanzi bokusebenza kwemikhiqizo ye-TPE. Ukucutshungulwa kwe-TPE masterbatch kudinga ukulawula okunembile kokuxuba, ukuhlakazeka, kanye nemingcele yezinga lokushisa, njengoba ama-TPE ane-viscosity ethile, ukumelana nokushisa, nezici zokunwebeka ezihlukile kumapulasitiki omdabu. I-Twin-screw extruders, ngamakhono abo aphezulu okuxuba nokusabalalisa, ukulawula izinga lokushisa okunembile, kanye nokuvumelana nezimo ezintweni ezihlukahlukene, sebeyimishini yokucubungula eyingqikithi ye-TPE masterbatch. Zhuoyue, umkhiqizi ochwepheshe wama-twin-screw extruder, inikeza uhla olugcwele lwezixazululo ezithuthukisiwe ze-extrusion eziklanyelwe ngokukhethekile i-TPE ukuhlanganisa kanye nokucubungula kwe-masterbatch, ehlanganisa i-TPE/SBS/TPU/TPR/TPV nezinye izigaba ezinkulu ze-TPE, ukuhlangabezana nezidingo ezahlukene zabakhiqizi ezimbonini ezahlukene.
1. Uhlolojikelele lwe-Thermoplastic Elastomers (I-TPE): Izigaba, Izakhiwo Nezimpawu Ezisemqoka
Ama-TPE awumndeni ohlukahlukene wezinto zokwakha, ihlukaniswe yaba izigaba eziyisithupha ezentengiselwano ezijwayelekile ngokusekelwe ekwakhekeni kwamakhemikhali nokwakheka kwawo. Isigaba ngasinye sinezici ezihlukile, izici zokucubungula, nezinkambu zohlelo lokusebenza, okunquma ngokuqondile izidingo zokwakhiwa kwe-masterbatch kanye nemishini ye-extrusion. Ukuqonda ukuhlukaniswa kanye nezakhiwo zama-TPE kuyisisekelo sokuthuthukisa ukucutshungulwa kwe-masterbatch nokukhetha ama-twin-screw extruder afanelekile..
1.1 Izigaba eziyisithupha zezohwebo ezijwayelekile zama-TPE
1.1.1 I-Styrenic Block Copolymers (I-TPS, TPE-s).
I-TPS iyisigaba esisetshenziswa kakhulu sama-TPE, ibalwa ngesabelo esikhulu semakethe ye-TPE yomhlaba wonke. Yakhiwe ngamabhulokhi e-styrenic (njenge-polystyrene, PS) kanye namabhulokhi elastomeric (njenge-polybutadiene, I-PB; i-polyisoprene, PI; noma i-ethylene-butylene, EB), exhunywe ngamabhondi e-covalent. Izinhlobo ezivame kakhulu ze-TPS zifaka i-SBS (I-Styrenes-Butadienes-Styrenes), I-SIS (I-styrene-Isoprene-Styrene), SEBS (I-styrene-Ethylene-Butylene-Styrene), kanye SEPS (I-styrene-Ethylene-Propylene-Styrene).
Izici ezibalulekile ze-TPS zifaka ukuguquguquka okuhle kakhulu, ukunwebeka, kanye nokusetshenzwa. SEBS kanye SEPS, okuyizinguqulo ze-hydrogenated ze-SBS ne-SIS, baye bathuthukisa ukumelana nokushisa, ukumelana nesimo sezulu, kanye nokumelana nokuguga, ukubenza bafaneleke izicelo zangaphandle nezisezingeni eliphezulu. Izinto ze-TPS zinemibala kalula futhi zilungiswe nge-masterbatch, futhi izinga lokushisa labo lokucubungula lisukela ku-150℃ ukuya ku-220℃, ehambisana nama-twin-screw extruder amaningi. Izinhlelo zokusebenza ezijwayelekile ze-TPS zihlanganisa izingxenye zezimoto, izintambo nezintambo, izimpahla zabathengi, kanye nemishini yezokwelapha.
1.1.2 I-Thermoplastic Polyolefin Elastomers (I-TPO, TPE-o).
I-TPO iyinhlanganisela ebonakalayo ye-polyolefin (njenge-polypropylene, PP; noma i-polyethylene, I-PE) kanye ne-elastomer (njenge-ethylene-propylene-diene monomer, I-EPDM). Ihlanganisa ukuqina kwe-polyolefin nokunwebeka kwama-elastomers, futhi inokumelana okuhle kwamakhemikhali, ukumelana nesimo sezulu, nokuguquguquka kwezinga lokushisa eliphansi. Ama-TPO awanabo ubuthi, engenaphunga, futhi igaywa kabusha, ukuzenza zibe zilungele izinhlelo zokusebenza ezidinga ubungane bemvelo.
Izinga lokushisa lokucubungula le-TPO lisuka ku-160 ℃ liye ku-230 ℃, futhi inokuhambisana okuhle nama-masterbatches ahlukahlukene (umbala masterbatch, i-masterbatch evimbela ilangabi, njll.). Ama-TPO asetshenziswa kakhulu ezingxenyeni zangaphandle zezimoto (njengamakhava obhampa, ama-fender liners), izinto zokwakha (njengezimvu zamanzi, ama-gaskets), kanye nezingxenye zikagesi. Ngenxa yokuqukethwe kwawo okuphezulu kwe-polyolefin, Ukucutshungulwa kwe-TPO masterbatch kudinga ama-extruder anekhono elihle lokuhlanganisa ukuze kuqinisekiswe ukuhlakazeka okufanayo kombala nezithako..
1.1.3 I-Thermoplastic Vulcanisates (I-VAT, I-TPE v).
I-TPV iyinhlanganisela eguquguqukayo ye-pololefin (ngokuvamile PP) kanye ne-elastomer (ngokuvamile i-EPDM). Ngesikhathi sokucubungula, isigaba se-elastomer sishiswa sibe yizinhlayiya ezincane futhi sihlakazwe ngokufanayo ku-matrix ye-polyolefin, okuholela ku-elasticity enhle kakhulu, ukumelana nesethi yokucindezela, nokumelana nokushisa. Ama-TPV anezakhiwo ezingcono zemishini nokuzinza kobukhulu kunama-TPE avamile, futhi ingamelana nokuchayeka isikhathi eside kwezinga lokushisa eliphezulu (kufika ku-150 ℃).
Ukucutshungulwa kwe-TPV kudinga ukulawulwa okunembile kwezinga lokushisa namandla okugunda okuqinile ukuze kuqinisekiswe ukuvuthwa okufanayo nokuhlakazeka. Izinga lokushisa lokucubungula lisuka ku-170 ℃ liye ku-240 ℃, futhi impahla ine-viscosity ephezulu ngesikhathi sokucubungula, okubeka izidingo eziphakeme ku-torque nokumelana nokugqoka kwama-twin-screw extruder. Ama-TPV asetshenziswa kakhulu kuma-seal ezimoto, amapayipi, ama-gaskets, kanye nezingxenye zezimboni ezidinga ukusebenza okuphezulu nokuqina.
1.1.4 I-Thermoplastic Polyurethanes (I-TPU).
I-TPU iyi-block copolymer eyakhiwe ngamasegimenti aqinile (i-disocyanate kanye ne-chain extender) kanye nezingxenye ezithambile (i-polyol). Ine-elasticity enhle kakhulu, ukumelana nemihuzuko, ukumelana nowoyela, namandla mechanical, futhi ingalungiswa ngobulukhuni kusukela ekuthambile kakhulu (Shore A 30) kunzima kakhulu (Shore D 85) ngokushintsha isilinganiso sezingxenye eziqinile nezithambile.
Ukucubungula kwe-TPU kuzwela izinga lokushisa kanye nomswakama. Izinga lokushisa lokucubungula lisuka ku-180 ℃ liye ku-250 ℃, futhi impahla kumele yomiswe kahle ngaphambi kokucubungula (okuqukethwe komswakama ≤0.05%) ukugwema i-hydrolysis kanye nokwakheka kwe-bubble. Ukucutshungulwa kwe-TPU masterbatch kudinga ama-extruder anokulawula izinga lokushisa okunembile namandla okukhipha i-vacuum. I-TPU isetshenziswa kakhulu ezintanjeni nasezintanjeni, amapayipi ezimoto, izicathulo, ama-catheter ezokwelapha, kanye nemishini yezemidlalo.
1.1.5 I-Thermoplastic Copolyesters (I-TPC, I-TPE-E).
I-TPC iyi-block copolymer eyakhiwe izingxenye eziqinile ze-polyester kanye nezingxenye ezithambile ze-polyether noma i-polyester.. Inokumelana nokushisa okuhle kakhulu, ukumelana kwamakhemikhali, kanye nezakhiwo zemishini, futhi ingamelana namazinga okushisa afinyelela ku-150℃ isikhathi eside. Ama-TPC aphinde abe nokuguquguquka okuhle nokunwebeka, ukubenza bafanelekele izinhlelo zokusebenza ezisebenza kahle kakhulu.
Izinga lokushisa lokucubungula le-TPC lisukela ku-220℃ liye ku-280℃, ephakeme kunezinye izigaba ze-TPE. Ine-viscosity ephezulu ngesikhathi sokucubungula futhi idinga ama-extruder ane-torque ephezulu kanye nokulawula izinga lokushisa okunembile. I-TPC masterbatch processing idinga ukunakwa okukhethekile ekuhlakazweni kwezingulube nezithasiselo ukuze kugwenywe ukuthikameza izakhiwo zemishini.. Ama-TPC asetshenziswa kakhulu ezingxenyeni zezimoto (njengamapayipi okungenisa umoya, transmission seals), izingxenye ze-aerospace, kanye nemishini yezimboni.
1.1.6 I-Thermoplastic Polyamides (I-TPA, I-TPE-A).
I-TPA iyi-block copolymer eyakhiwe izingxenye eziqinile ze-polyamide kanye nezingxenye ezithambile ze-polyether. Ihlanganisa amandla aphezulu, ukumelana nokugqoka, kanye nokumelana kwamakhemikhali kwama-polyamides ngokuguquguquka nokunwebeka kwama-polyethers. I-TPA inokumelana nomthelela omuhle kakhulu nokusebenza kwezinga lokushisa eliphansi, futhi ingasetshenziswa ezindaweni ezinokhahlo.
Izinga lokushisa lokucubungula le-TPA lisuka ku-230 ℃ liye ku-290 ℃, futhi imunca kakhulu amanzi, edinga ukomiswa ngokuphelele ngaphambi kokucubungula. Ukucubungula kwe-TPA masterbatch kudinga ama-extruder anokumelana nokugqokwa okuphezulu (ngenxa yobulukhuni obukhulu be-polyamide) kanye nokulawula izinga lokushisa okunembile ukuze kugwenywe ukuwohloka kwezinto. I-TPA isetshenziswa kabanzi ezingxenyeni zezimoto (njengamagiya, ama-bearings), izixhumi zikagesi, namapayipi ezimboni.
1.2 Izici Ezibalulekile zama-TPE Athinta Ukucutshungulwa kwe-Masterbatch
Ama-TPE anezinto ezihlukile eziwahlukanisa kumapulasitiki omdabu, futhi lezi zakhiwo zithinta ngokuqondile ukwakhiwa kwe-masterbatch kanye nokukhethwa kwemishini ye-extrusion. Izakhiwo ezibalulekile okufanele zicatshangelwe ekucubunguleni i-masterbatch yilezi ezilandelayo:
1.2.1 I-Elasticity kanye nokuvumelana nezimo.
Ama-TPE ane-elasticity ephezulu kanye nokuguquguquka, okusho ukuthi i-masterbatch kufanele ihambisane ne-TPE matrix ukugwema ukwehlisa ukusebenza okunwebekayo kwento.. Umthwali we-masterbatch kufanele ahambisane kahle ne-TPE, futhi i-disperant kufanele iqinisekise ukuhlakazeka okufanayo kwezingulube ngaphandle kokwenza ama-agglomerate angabangela ukugxila kwengcindezi futhi kunciphise ukuguquguquka..
1.2.2 Ukumelana Nokushisa.
Izigaba ezihlukene ze-TPE zinokumelana nokushisa okuhlukile (izinga lokushisa lokucubungula lisuka ku-150 ℃ liye ku-290 ℃). I-Masterbatch pigments kanye nezithasiselo kumele zibe nokumelana nokushisa okuhambisana nezinga lokushisa lokucubungula le-TPE ukugwema ukubola, ukushintsha umbala, noma ukuwohloka kokusebenza ngesikhathi se-extrusion. Ngokwesibonelo, I-TPC ne-TPA zidinga ama-pigments amelana nezinga lokushisa eliphezulu neziqinisi ukushisa.
1.2.3 Viscosity kanye Processability.
Ama-TPE anama-viscosity ahlukahlukene ngesikhathi sokucubungula (I-TPV ne-TPC zine-viscosity ephezulu, kuyilapho i-TPS ine-viscosity ephansi). Lokhu kuthinta amandla okugunda kanye nezidingo zokudlulisa ze-twin-screw extruder. Ama-TPE ane-viscosity ephezulu adinga ama-extruder anetorque ephezulu namandla okuhlanganisa aqinile, while low-viscosity TPEs require precise control of extrusion speed to avoid material overflow.
1.2.4 Moisture Absorption.
Some TPEs (such as TPU, I-TPA) have high water absorption, which can cause bubbles, hydrolysis, and other defects in the masterbatch. The raw materials (I-TPE, izingulube, izithasiselo) must be thoroughly dried before processing, and the extruder should be equipped with a vacuum exhaust device to remove moisture and volatile substances.
1.2.5 Compatibility with Additives.
TPEs often require functional additives (such as antioxidants, Ama-UV stabilizers, okothambisa) to improve their performance. The masterbatch should be formulated to ensure that the additives are compatible with both the pigments and the TPE matrix, avoiding chemical reactions that could affect product quality.
2. Masterbatch for TPEs: Composition, Formulation and Processing Requirements
I-Masterbatch yama-TPEs iyingxube egxilile yezingulube/odayi, abathwali, kanye nezithasiselo, yakhelwe ukufaka imibala kuma-TPE futhi idlulisele imisebenzi eyengeziwe (njengokuncipha komlilo, i-antistatic, i-antibacterial) ngenkathi igcina izakhiwo zemvelo zokunwebeka nokucubungula. Ukwakhiwa nokucutshungulwa kwe-TPE masterbatch kufuna kakhulu kunalezo zamapulasitiki endabuko, ngenxa yezakhiwo ezihlukile zama-TPE. Lesi sigaba sichaza ngokubhaliwe, izimiso zokwakha, kanye nezidingo zokucubungula ze-TPE masterbatch.
2.1 Ukwakhiwa Okubalulekile kwe-TPE Masterbatch
Njenge-masterbatch yendabuko, I-TPE masterbatch iqukethe izingxenye ezintathu eziyisisekelo: izingulube/udayi, abathwali, kanye nezithasiselo. Ukukhethwa nengxenye yengxenye ngayinye yakhelwe ngohlobo lwe-TPE kanye nezidingo zayo zohlelo.
2.1.1 Izingulube/Odayi.
Ama-pigments/amadayi yizici ezibalulekile ezinikeza umbala kuma-TPE, accounting for 10%-70% yokwakheka kwe-masterbatch (ngokuya ngokuqina kombala kanye nohlobo lwe-TPE). Izidingo ezibalulekile zombala/udayi ku-TPE masterbatch yilezi:
- – Ukumelana Nokushisa: Kufanele imelane nezinga lokushisa lokucubungula le-TPE eqondiwe (150℃-290℃) ngaphandle kokubola noma ukuguquguquka. Okwama-TPE asezingeni eliphezulu (I-TPC, I-TPA), Kukhethwa izingulube zemvelo ezimelana nokushisa okuphezulu noma izingulube ze-inorganic.
- – Ukuhambisana: Kufanele ihambisane ne-TPE matrix ukugwema ukufuduka, ukuqhakaza, noma ukuncipha kwe-elasticity. Ama-pigments ane-polarity efanayo ne-TPE ahambisana kakhulu (isib., i-polar pigments ye-TPU, izingulube ezingezona ze-polar ze-TPS).
- – Ukuhlakazeka: Kufanele ihlakazwe kalula ku-matrix ye-TPE ukuze kuqinisekiswe umbala ofanayo futhi igweme izindawo ezinemibala, imivimbo, noma izakhiwo zemishini ezincishisiwe. Ama-pigment anezinhlayiyana ezinhle (20-40 Imeshi) nge-agglomeration ephansi iyathandwa.
- – Ubungane Bemvelo: Kufanele ihlangabezane nezindinganiso zomhlaba jikelele zokuvikela imvelo (njenge REACH, I-RoHS) ukugwema izinto ezinobuthi noma eziyingozi (njengezinsimbi ezisindayo) okungase kuthinte impilo yabantu kanye nemvelo.
Izingulube ezivamile ezisetshenziswa ku-TPE masterbatch zihlanganisa: izingulube ze-inorganic (titanium dioxide for white, carbon black for black, i-iron oxide yokubomvu/ophuzi), kanye nezingulube eziphilayo ezimelana nokushisa okuphezulu (phthalocyanine blue/green, i-quinacridone ebomvu).
2.1.2 Abathwali.
Abathwali yi-matrix ye-masterbatch, accounting for 20%-80% yokwakheka, futhi ubambe iqhaza elibalulekile ekuhlakazeni izimibalabala nokunamathela ku-matrix ye-TPE. Isithwali kufanele sibe nokuhambisana okuhle kakhulu kukho kokubili umbala kanye ne-TPE eqondiwe, njengoba ukungahambisani kahle kungaholela ekufudukeni kwe-pigment, umbala ongalingani, kanye nokusebenza kwe-TPE okuncishisiwe. Ukukhethwa kwenkampani yenethiwekhi kususelwe ohlotsheni lwe-TPE:
- – Okwe-TPS (I-SBS, SEBS): Sebenzisa i-TPS noma i-PP njengesithwali, enokuhambisana okuhle nokucubungula uketshezi.
- – Okwe-TPO/TPE-o: Use PP or PE as the carrier, matching the polyolefin component of the TPO.
- – For TPV/TPE-v: Use PP as the carrier, which is compatible with the PP matrix of the TPV.
- – For TPU: Use TPU as the carrier, ensuring compatibility with the TPU matrix and avoiding hydrolysis.
- – For TPC/TPE-E and TPA/TPE-A: Use TPC or TPA as the carrier, ngokulandelana, to match the high-temperature processing requirements and compatibility.
Isithwali kufanele futhi sibe nokucutshungulwa okuhle kwe-fluidity, with a melting point and processing temperature consistent with or slightly lower than the target TPE, to ensure uniform mixing and avoid TPE degradation.
2.1.3 Izithasiselo.
Izengezo ziyizingxenye ezisizayo ezingezwe ukuthuthukisa ukusebenza kokucubungula, dispersibility, and functional performance of TPE masterbatch, accounting for 1%-10% yokwakheka. The type and dosage of additives are determined by the TPE type and application requirements:
- – Abahlakaza: The most important additive for TPE masterbatch, used to reduce pigment surface tension, prevent agglomeration, futhi uqinisekise ukuhlakazeka okufanayo ku-matrix ye-TPE. Ama-disperants ajwayelekile afaka i-polyethylene wax, polypropylene wax, i-stearic acid, kanye namawakisi e-anhydride axhunyelelwe. Okwama-TPE ane-viscosity ephezulu (I-VAT, I-TPC), ama-disperants asebenza kahle kakhulu anokuhambisana okuqinile ayakhethwa.
- – Ama-Compatibilizers: Isetshenziselwa ukuthuthukisa ukuhambisana phakathi kwama-pigments nama-TPE, naphakathi kwe-masterbatch ne-TPE matrix. Ngokwesibonelo, I-maleic anhydride grafted PP isetshenziswa njengesihlanganisi se-TPO masterbatch, kanye ne-polyurethane wax isetshenziselwa i-TPU masterbatch.
- – Ama-Heat Stabilizers: Isetshenziselwa ukuvimbela ukubola kwe-pigment kanye nokuwohloka kwe-TPE ngesikhathi sokucutshungulwa kwezinga lokushisa eliphezulu. Iziqinisi ezivamile zokushisa zihlanganisa iziqinisi ze-organic tin (kwe-TPU), ivimbela ama-antioxidants e-phenol (kwe-TPS, I-TPO), kanye nama-antioxidants we-phosphite (kwe-TPC, I-TPA).
- – Ama-UV Stabilizers nama-Antioxidants: Isetshenziselwa ukuthuthukisa ukumelana nesimo sezulu kanye nokumelana nokuguga kwemikhiqizo ye-TPE enemibala, ukuvimbela ukufiphala kombala kanye nokuwohloka kokusebenza ngaphansi kokukhanya kwelanga nomoya-mpilo. Ngezinhlelo zokusebenza zangaphandle (njengezingxenye zangaphandle zezimoto), Izithambisi ze-UV nezivimbela ukukhanya kwe-amine (I-HALS) zengezwa.
- – Izinto zokugcoba: Isetshenziselwa ukunciphisa ukungqubuzana phakathi kwezinto zokwakha kanye nemishini ye-extrusion (isikulufu, umgqomo, fa ikhanda), ngcono ukucubungula uketshezi, futhi ugweme ukunamathela ezintweni zokusebenza. Izithambisi ezivamile zihlanganisa i-stearic acid, i-calcium stearate, namafutha e-silicone. Okwe-TPU ne-TPA, okothambisa okuhamba kancane kuyakhethwa ukuze kugwenywe ukuthikameza ukusebenza komkhiqizo.
- – Izithasiselo Ezisebenzayo: Kwengezwe ukuze kudluliselwe imisebenzi ekhethekile kuma-TPE, njengama-flame retardants (izintambo nezintambo), ama-antistatic agents (zezingxenye zikagesi), kanye nama-antibacterial agents (kwemishini yezokwelapha kanye nezimpahla zabathengi).
2.2 Izimiso Zokwakha ze-TPE Masterbatch
Ukwakhiwa kwe-TPE masterbatch kumele kulinganise umphumela wokufaka umbala, ukusebenza kokucubungula, kanye nezakhiwo ze-TPE. Izimiso ezibalulekile zimi kanje:
2.2.1 Ukuhambisana Okokuqala.
Umthwali, izingulube, futhi izithasiselo kumele zihambisane ne-TPE eqondiwe ukuze kugwenywe ukunciphisa ukunwebeka kwezinto, ukuguquguquka, kanye nezakhiwo zemishini. Ngokwesibonelo, ukusebenzisa isithwali esingeyona i-polar ye-TPU ye-polar kuzoholela ekusebenzisaneni kabi nokufuduka kwe-pigment.
2.2.2 Fanisa Ukumelana Nokushisa.
Izithako zombala nezithasiselo kumele zibe nokumelana nokushisa okuhambisana nezinga lokushisa lokucubungula le-TPE. Ngokwesibonelo, I-TPC masterbatch isebenzisa umbala omelana nokushisa okuphezulu (ukumelana nokushisa ≥280℃) ukugwema ukubola ngesikhathi sokucubungula.
2.2.3 Lungiselela Ukuhlakazeka.
Okuqukethwe kwe-pigment kanye ne-disperant dosage kuyalungiswa ukuze kuqinisekiswe ukuhlakazeka okufanayo. I-high-concentration masterbatch (okuqukethwe kwe-pigment 50%-70%) kudinga ama-dispersants amaningi kanye nekhono elingcono lokuhlanganisa, kuyilapho i-masterbatch ene-concentration ephansi (10%-30%) igxile ekuvumelaneni.
2.2.4 Nciphisa Umthelela Ezimpahleni ze-TPE.
I-masterbatch akufanele ithinte kakhulu ukunwebeka kwe-TPE, isethi yokucindezela, noma ukumelana nemihuzuko. Ngokwesibonelo, izisabalalisi noma izinto zokugcoba ngokweqile zinganciphisa amandla emishini ye-TPE.
2.2.5 Ukuthobela Ukuvikelwa Kwemvelo.
Ukwakhiwa kufanele kuhlangabezane nezindinganiso zomhlaba jikelele zokuvikela imvelo, ukugwema izinto ezinobuthi noma eziyingozi (njengezinsimbi ezisindayo, ama-phthalates) okungase kukhawulele ukufinyelela ezimakethe.
2.3 Izimfuneko Zokucubungula ze-TPE Masterbatch
I-TPE masterbatch processing ikakhulukazi yenziwa kusetshenziswa ubuchwepheshe be-twin-screw extrusion, okudinga ukulawula okuqinile kokwelashwa kwangaphambili kwempahla eluhlaza, premixing, imingcele ye-extrusion, kanye nangemuva kokucubungula ukuze kuqinisekiswe ikhwalithi yomkhiqizo. Izidingo ezibalulekile zokucubungula zimi kanje:
2.3.1 Ukwelashwa Kwempahla Engavuthiwe.
Ama-TPE (ikakhulukazi i-TPU, I-TPA) have high water absorption, ngakho zonke izinto zokusetshenziswa (Inkampani yenethiwekhi ye-TPE, izingulube, izithasiselo) must be thoroughly dried before processing. Izinga lokushisa lokumisa nesikhathi kunqunywa uhlobo lwezinto ezibonakalayo: I-TPU/TPA yomiswe ku-100-120 ℃ ukuze 6-8 amahora, I-TPS/TPO yomiswe ku-80-100℃ ukuze 3-5 amahora, kanye nama-pigments omisiwe ku-60-80 ℃ 2-4 amahora. Umswakama wezinto zokusetshenziswa ezomisiwe kufanele ulawulwe ngezansi 0.1% (0.05% okwe-TPU/TPA).
Ngaphezu kwalokho, pigments with large particle sizes or agglomerates should be crushed and sieved (20-40 Imeshi) to improve dispersibility, and impurities (metal particles, uthuli) should be removed to avoid wear on extrusion equipment and defects in masterbatch.
2.3.2 Premixing.
The dried raw materials (izingulube, carrier, izithasiselo) are mixed in a high-speed mixer according to the formula ratio to form a uniform preliminary mixture. The premixing parameters are adjusted based on the TPE type: mixing speed 800-1200 rpm, ukuhlanganisa isikhathi 5-10 imizuzu, mixing temperature 40-60℃. For high-concentration masterbatch or high-viscosity TPE carriers, the premixing time is extended, and dispersants are added first to coat the pigments, improving dispersibility.
2.3.3 Extrusion Parameters Control.
Twin-screw extrusion is the core step of TPE masterbatch processing, and the key parameters (izinga lokushisa, isivinini sesikulufa, ingcindezi ye-extrusion, feeding speed) must be precisely controlled to match the TPE type:
- – Ukulawula izinga lokushisa: Umgqomo uhlukaniswe waba 4-6 izigaba zokulawula izinga lokushisa (ingxenye yokudla, isigaba sokuncibilika, isigaba sokuxuba, isigaba se-homogenizing, isigaba sekhanda lokufa). Izinga lokushisa lesigaba ngasinye lilungiswa ngokuya ngezinga lokushisa lokucubungula i-TPE. Ngokwesibonelo, I-TPS masterbatch: ukondla isigaba 100-120 ℃, ukuncibilika kwesigaba 160-180 ℃, ukuxuba isigaba 170-190 ℃, isigaba se-homogenizing 160-180 ℃, isigaba sekhanda lokufa 150-170 ℃; I-TPC masterbatch: ukondla isigaba 150-170 ℃, ukuncibilika kwesigaba 230-250℃, ukuxuba isigaba 240-260 ℃, isigaba se-homogenizing 230-250 ℃, isigaba sekhanda lokufa 220-240 ℃. Ukunemba kokulawula izinga lokushisa kufanele kufinyelele ku-±1℃ ukuze kugwenywe ukuwohloka kwe-TPE nokubola kombala.
- – Isivinini seScrew: Isivinini sesikulufu sisukela 200-800 rpm, kulungiswe ngokusekelwe ku-TPE viscosity. Ama-TPE ane-viscosity ephezulu (I-VAT, I-TPC) zidinga isivinini esikhulu sesikulufa (500-800 rpm) ukukhiqiza amandla anele okugunda ukuze kuhlakazwe umbala; low-viscosity TPEs (I-TPS) use moderate speed (300-500 rpm) to avoid material overflow.
- – I-Extrusion Pressure: The pressure ranges from 5-12MPa, kept stable (fluctuation ≤±0.5MPa) to ensure uniform mixing and shaping. High-viscosity TPEs require higher pressure, while low-viscosity TPEs use moderate pressure.
- – Feeding Speed: Adjusted to match the screw speed and extrusion speed, ensuring stable and uniform feeding. Okwama-TPE ane-viscosity ephezulu, a forced feeding device is used to avoid material accumulation.
2.3.4 Post-Processing.
After extrusion, the strip-shaped masterbatch is cooled (water tank cooling, 20-30℃), granulated (particle size 2-5mm), screened (to remove unqualified particles), and packaged (sealed and moisture-proof packaging). For moisture-sensitive TPE masterbatch (I-TPU, I-TPA), the finished product is dried again before packaging to prevent moisture absorption.
3. Application Fields of TPE Masterbatch and Matching Zhuoyue Extruder Solutions
TPEs are widely used in automotive, kagesi, ukwakhiwa, izimpahla zabathengi, and other industries, and different application fields have different requirements for TPE masterbatch performance (umbala, dispersibility, functionality) and production efficiency. Zhuoyue’s full series of twin-screw extruders (I-HTS BASIC/PLUS/SUPER, I-ZTE, I-HTE) are specially optimized for TPE masterbatch processing, providing targeted solutions for different TPE categories and application fields. Below is a detailed introduction to the main application fields of TPE masterbatch and the matching Zhuoyue extruder series.
3.1 Imboni Yezimoto: The Largest Application Field of TPE Masterbatch
Imboni yezimoto ingumthengi omkhulu wama-TPE, accounting for more than 40% of the global TPE market. TPEs are used in a wide range of automotive components due to their lightweight, evumelana nezimo, and recyclable properties, and TPE masterbatch plays a key role in coloring and functional modification of these components. The main automotive applications of TPE masterbatch include:
3.1.1 Automotive Seals and Gaskets.
Ama-TPE (mainly TPV, I-TPO) are used to produce automotive door seals, amafasitela seals, hood seals, kanye nama-gaskets, which require good elasticity, ukumelana nesimo sezulu, nokuguquguquka kwezinga lokushisa eliphansi. The masterbatch for these components requires uniform coloring, good weather resistance (Ukumelana ne-UV, aging resistance), and compatibility with TPV/TPO matrices.
Matching Extruders: HTS PLUS series and HTE series. The HTS PLUS series has high torque and wear resistance, suitable for TPV masterbatch processing (high viscosity, high shear force required); the HTE series integrates high performance and cost-effectiveness, suitable for TPO masterbatch processing, with good mixing dispersibility and energy-saving advantages.
3.1.2 Automotive Interior Components.
Ama-TPE (mainly TPS, I-TPU) are used to produce automotive interior components such as instrument panel skins, amapaneli eminyango, steering wheel covers, and armrests, which require good flexibility, soft touch, and environmental friendliness (non-toxic, engenaphunga). The masterbatch requires bright colors, uniform dispersibility, and no migration (to avoid staining other interior components).
Matching Extruders: HTS BASIC series and HTE series. The HTS BASIC series is cost-effective, suitable for small and medium-sized manufacturers producing TPS interior masterbatch; the HTE series has good mixing dispersibility and low energy consumption, suitable for large-scale production of TPU/TPS interior masterbatch.
3.1.3 Automotive Hoses and Tubing.
Ama-TPE (mainly TPU, I-TPC, I-TPA) are used to produce automotive fuel hoses, air intake hoses, and brake hoses, which require good oil resistance, ukumelana nokushisa, namandla mechanical. The masterbatch requires high-temperature resistance, ukumelana nowoyela, and uniform dispersibility to avoid affecting the hose’s performance.
Matching Extruders: HTS SUPER series and HTS PLUS series. The HTS SUPER series has ultra-high torque, ukulawula izinga lokushisa okunembile, and high wear resistance, suitable for TPC/TPA masterbatch processing (izinga lokushisa eliphezulu, high viscosity); the HTS PLUS series has good heat resistance and mixing capabilities, suitable for TPU masterbatch processing.
3.1.4 Other Automotive Components.
TPEs are also used to produce automotive dust covers, triangle windows, air filters, and breakers, which require different properties (such as dust resistance, obala, ukumelana nomthelela). The masterbatch is formulated according to specific requirements, and the matching extruders are selected based on TPE type and production scale.
3.2 Electrical and Electronic Industry: Functional TPE Masterbatch Applications
The electrical and electronic industry is another important application field of TPEs, where TPEs are used to produce wires and cables, izixhumi, nezinye izingxenye, requiring functional masterbatch (i-antistatic, flame-retardant, high-temperature resistant) to meet safety and performance requirements.
3.2.1 Wires and Cables.
Ama-TPE (mainly TPU, I-TPS, I-TPO) are used as insulation and sheath materials for wires and cables (power cables, ignition wires, headphone wires, connector plugs), which require good electrical insulation, ukuncipha komlilo, and abrasion resistance. The masterbatch requires flame retardancy (meeting UL94 V-0 ejwayelekile), izakhiwo ze-antistatic, and uniform coloring.
Matching Extruders: HTS PLUS series, HTE series, and HTS SUPER series. The HTS PLUS series has good flame-retardant masterbatch mixing capabilities, suitable for TPO/TPU wire and cable masterbatch; the HTE series is cost-effective, suitable for small and medium-sized production; the HTS SUPER series is suitable for high-end, high-concentration flame-retardant masterbatch processing.
3.2.2 Electrical Connectors and Plugs.
Ama-TPE (mainly TPU, I-TPA) are used to produce electrical connectors, plugs, and socket housings, which require good electrical insulation, ukumelana nomthelela, and environmental friendliness. The masterbatch requires uniform coloring, high-temperature resistance, and no migration.
Matching Extruders: HTS PLUS series and HTS SUPER series. The HTS PLUS series has good compatibility with TPU/TPA, ensuring uniform dispersion; the HTS SUPER series has precise temperature control, avoiding TPA degradation during processing.
3.3 Construction and Transportation Industry: Weather-Resistant TPE Masterbatch Applications
In the construction and transportation industry, TPEs are used to produce seals, expansion joints, subway mats, nezinye izingxenye, requiring good weather resistance, aging resistance, and low temperature flexibility to adapt to harsh outdoor environments.
3.3.1 Construction Seals and Expansion Joints.
Ama-TPE (mainly TPV, I-TPO) are used to produce building door and window seals, curtain wall seals, and expansion joints, which require good weather resistance, Ukumelana ne-UV, and compression set resistance. The masterbatch requires UV stabilizers and antioxidants to improve weather resistance, and uniform coloring to match building aesthetics.
Matching Extruders: HTS PLUS series and HTE series. The HTS PLUS series has good weather-resistant additive mixing capabilities, suitable for TPV masterbatch processing; the HTE series is energy-saving and efficient, suitable for large-scale production of TPO masterbatch.
3.3.2 Transportation Components.
TPEs are used to produce subway mats, road noise reduction mats, and transportation vehicle seals, which require good shock absorption, noise reduction, nokumelana nokugqoka. The masterbatch requires uniform dispersibility and good compatibility with TPE matrices to maintain shock absorption performance.
Matching Extruders: HTS BASIC series and HTE series. The HTS BASIC series is cost-effective, suitable for small-batch production; the HTE series has good mixing capabilities, ensuring uniform dispersion of shock-absorbing additives.
3.4 Consumer Goods and Other Industries: Diverse TPE Masterbatch Applications
TPEs are widely used in consumer goods and other industries, with diverse application scenarios and varying masterbatch requirements, focusing on color, soft touch, and environmental friendliness.
3.4.1 Footwear Industry.
Ama-TPE (mainly TPU, I-TPS) are used to produce shoe soles, shoe uppers, and shoe accessories, which require good flexibility, ukumelana nemihuzuko, and soft touch. The masterbatch requires bright colors, uniform dispersibility, and no migration (to avoid staining socks).
Matching Extruders: HTS BASIC series and ZTE series. The ZTE series has excellent cost performance, suitable for small and medium-sized footwear manufacturers; the HTS BASIC series has good mixing dispersibility, ensuring uniform coloring of shoe sole masterbatch.
3.4.2 Household and Daily Necessities.
TPEs are used to produce handles, coasters, foot mats, amathoyizi, and other household items, which require non-toxic, engenaphunga, soft touch, and bright colors. The masterbatch requires environmental friendliness (meeting food contact standards for coasters/handles) and uniform coloring.
Matching Extruders: ZTE series and HTS BASIC series. The ZTE series is simple to operate, low in maintenance cost, suitable for small-batch, multi-variety production; the HTS BASIC series has good environmental protection masterbatch compatibility, meeting food contact standards.
3.4.3 Medical Devices.
Ama-TPE (mainly TPU, I-TPS) are used to produce medical catheters, imijovo, and medical masks, which require non-toxic, sterile, and biocompatible. The masterbatch requires medical grade environmental protection (meeting ISO 10993 ejwayelekile), high transparency (for catheters), and uniform dispersibility.
Matching Extruders: HTS SUPER series and HTS PLUS series. The HTS SUPER series has clean production design, ukulawula izinga lokushisa okunembile, avoiding material pollution; the HTS PLUS series has good compatibility with medical grade TPEs, ensuring product sterility and biocompatibility.
3.4.4 Other Industrial Applications.
TPEs are also used to produce drain pipes, industrial gaskets, and mechanical components, which require good chemical resistance, ukumelana nokugqoka, namandla mechanical. The masterbatch is formulated according to specific industrial requirements, and the matching extruders are selected based on TPE type and production scale.
4. Zhuoyue’s Full Series Extruders: Professional Solutions for TPE Masterbatch Processing
Zhuoyue has long been engaged in the research, development, and production of high-performance twin-screw extruders, and has accumulated rich experience in TPE masterbatch processing. Based on the unique processing characteristics of TPEs (high viscosity, temperature sensitivity, moisture absorption) and the diverse needs of manufacturers (different TPE categories, production scales, application fields), Zhuoyue has launched a full series of extruders suitable for TPE masterbatch processing, including HTS BASIC, HTS PLUS, HTS SUPER, I-ZTE, and HTE series. Each series has targeted performance advantages, providing personalized and efficient processing solutions for TPE masterbatch manufacturers of different scales.
4.1 Core Advantages of Zhuoyue’s Extruders for TPE Masterbatch Processing
Zhuoyue’s extruders are specially optimized for TPE masterbatch processing, with the following core advantages to meet the strict requirements of TPE processing:
4.1.1 Excellent Mixing and Dispersing Effect.
TPE masterbatch requires uniform dispersion of pigments and additives to avoid affecting the material’s elasticity and mechanical properties. All Zhuoyue’s twin-screw extruders adopt an intermeshing co-rotating structure, with a reasonable screw pitch, lead, and compression ratio design. The intermeshing and rotating of the twin screws generate strong shear force and kneading force, which can fully break pigment agglomerates and ensure uniform dispersion of pigments, abathwali, and additives in the TPE matrix. The mixing uniformity reaches more than 95%, which is far higher than that of ordinary extruders.
Ngaphezu kwalokho, the screws adopt a modular design, which can freely combine different screw elements (ukudlulisa, ukuxuba, ukugunda) according to the TPE type. Ngokwesibonelo, high-viscosity TPV/TPC masterbatch requires more mixing and shearing elements to enhance dispersion; low-viscosity TPS masterbatch uses more conveying elements to improve production efficiency.
4.1.2 Ukulawula Ukushisa Okunembile, Avoiding TPE Degradation.
TPEs are sensitive to temperature, and excessive temperature or temperature fluctuation can lead to material degradation (such as TPU hydrolysis, TPC chain scission). All Zhuoyue’s extruders adopt an advanced intelligent temperature control system, nge 4-6 independent temperature control sections, temperature control precision of ±1℃, and real-time temperature monitoring and alarm functions. The barrel adopts a double-layer jacket design, realizing rapid heating and cooling, and improving temperature response speed. The die head is equipped with an independent temperature control device, ensuring stable shaping of the masterbatch strip.
4.1.3 High Wear Resistance and Corrosion Resistance.
Some TPE masterbatches (such as TPA, I-TPC) contain high-hardness pigments or additives, which can wear the screw and barrel. Zhuoyue’s extruders use high-quality wear-resistant materials and advanced manufacturing technologies: HTS PLUS/SUPER/HTE series screws and barrels are made of imported wear-resistant alloy steel, undergoing bimetallic composite or laser cladding treatment, surface hardness ≥65 HRC (HTS SUPER series ≥70 HRC), service life 2-3 times that of ordinary extruders; HTS BASIC/ZTE series screws and barrels are nitrided, surface hardness ≥60 HRC, meeting the needs of ordinary TPE masterbatch processing.
4.1.4 Vacuum Exhaust and Moisture Removal Capabilities.
TPEs such as TPU and TPA have high water absorption, and moisture can cause bubbles and defects in the masterbatch. All Zhuoyue’s mid-to-high-end extruders (HTS PLUS/SUPER/HTE) are equipped with a vacuum exhaust device, which can effectively remove moisture, volatile substances, and air in the material, ensuring the density and quality of the masterbatch. The vacuum degree is adjustable (0.06-0.09I-MPa), adapting to different moisture content requirements.
4.1.5 High Production Efficiency and Energy Saving.
Zhuoyue’s extruders adopt high-torque gearboxes and optimized screw structures, with strong conveying capacity and high production efficiency. Compared with ordinary extruders, production efficiency is increased by 20%-50%, and energy consumption is reduced by 15%-25%. Ngokwesibonelo, HTS SUPER series production capacity reaches 1000-3000kg/h, suitable for large-scale mass production; ZTE series production capacity is 50-400kg/h, suitable for small-batch production.
4.1.6 Intelligent Control and Easy Operation.
All extruders adopt a PLC intelligent control system and touch screen operation interface, which can store up to 100 sets of formula and processing parameters. When switching between different TPE masterbatches, only the corresponding parameters need to be called, avoiding repeated debugging. The HTS SUPER series is equipped with cloud control functions, realizing remote parameter adjustment, production data monitoring, kanye nokugcinwa kokubikezela, eqaphela ukuphathwa kokukhiqiza okukhaliphile.
4.1.7 Ukuguquguquka Okubanzi.
Zhuoyue’s full series of extruders can adapt to the processing of all TPE categories (TPS/SBS/TPU/TPR/TPV/TPC/TPA) and masterbatch types (umbala masterbatch, i-masterbatch evimbela ilangabi, I-antistatic masterbatch), with pigment content ranging from 10% ku 70%. They can also be matched with auxiliary equipment (high-speed mixers, okomisi, amapholisa, ama-granulators) to form a complete automatic production line.
4.2 Detailed Introduction of Zhuoyue’s Extruder Series for TPE Masterbatch Processing
Each series of Zhuoyue’s extruders has unique performance characteristics and targeted adaptation scenarios, and manufacturers can select the appropriate series according to their TPE type, isikali sokukhiqiza, and application requirements.
4.2.1 HTS BASIC Series: Flexible and Cost-Effective for Ordinary TPE Masterbatch.
The HTS BASIC series is a cost-effective product designed for small and medium-sized manufacturers producing ordinary TPE masterbatch (I-TPS, low-concentration TPO/TPU masterbatch). It uses medium-torque gearboxes from leading European manufacturers, specific torque 10-12Nm/cm³, screw diameter 30-65mm, production capacity 100-500kg/h.
The series adopts nitrided screws and barrels, with good wear resistance, suitable for ordinary TPE masterbatch processing (pigment content ≤50%). It is equipped with a PLC control system, automatic temperature control, and feeding, simple to operate. The modular screw design allows flexible configuration according to TPS/TPO masterbatch requirements. The HTS BASIC series is an ideal choice for small and medium-sized manufacturers with limited budget, focusing on ordinary TPE masterbatch production (such as household goods, ordinary wires and cables).
4.2.2 HTS PLUS Series: High-Torque for Engineering TPE and High-Concentration Masterbatch.
The HTS PLUS series is positioned as a mid-to-high-end product, specially designed for high-demand TPE masterbatch processing (I-VAT, I-TPU, high-concentration TPE masterbatch, i-masterbatch evimbela ilangabi). It adopts high-torque gearboxes independently developed by Zhuoyue, specific torque 13-16Nm/cm³, screw diameter 40-75mm, production capacity 300-1200kg/h.
The series uses bimetallic composite screws and barrels (surface hardness ≥65 HRC), with excellent wear resistance and corrosion resistance, suitable for TPV/TPC masterbatch processing (high viscosity, high-hardness pigments). It is equipped with a 5-6 section precise temperature control system and vacuum exhaust device, avoiding TPU hydrolysis and TPC degradation. The enhanced mixing elements ensure uniform dispersion of high-concentration pigments (50%-70%) and functional additives (ama-flame retardants, ama-antistatic agents). The HTS PLUS series is suitable for medium-sized and large-scale manufacturers producing high-quality TPE masterbatch (such as automotive seals, high-grade wires and cables, imishini yezokwelapha).
4.2.3 HTS SUPER Series: Ultra-High Performance for High-End TPE Masterbatch.
Uchungechunge lwe-HTS SUPER luwuchungechunge oluphakeme kakhulu lwe-extruder lwe-Zhuoyue, emele izinga elithuthukisiwe lama-twin-screw extruder aseChina, yakhelwe okusezingeni eliphezulu, ukucubungula okuphezulu kwe-TPE masterbatch (I-TPA, I-TPC, i-ultra-high-concentration masterbatch, masterbatch yezimoto zamandla amasha/i-aerospace).
Isebenzisa idivayisi yakamuva ye-Zhuoyue yokudlulisa itorque ephezulu, i-torque ethize 17-20Nm/cm³, isikulufu ububanzi 50-95mm, umthamo wokukhiqiza 1000-3000kg/h. Izikulufu zenziwe ngensimbi ye-alloy entsha engagugi, ukwelashwa kwe-laser cladding (ubulukhuni bobuso ≥70 HRC), service life 3-4 times that of ordinary extruders. Umphongolo uthatha ijakhethi enezingqimba ezimbili + ukupholisa ukupholisa isakhiwo, ukunemba kokulawula izinga lokushisa ±1℃, ilungele ukucutshungulwa kwezinga lokushisa eliphezulu kwe-TPE (220-290℃). Inhlanganisela yesikulufu esinezigaba eziningi iqinisekisa ukufana kokuxuba okuphezulu (≥98%), ilungele i-ultra-high-concentration masterbatch (70%-80%) and TPA/TPC masterbatch processing.
The series is equipped with an intelligent cloud control system, realizing remote parameter adjustment, fault early warning, kanye nokugcinwa kokubikezela. It is suitable for large-scale, high-standard manufacturers producing high-end TPE masterbatch (such as automotive high-temperature hoses, precision electrical connectors, aerospace components).
4.2.4 ZTE Series: Cost-Effective for Universal TPE Masterbatch.
The ZTE series is positioned as a cost-effective product, designed for manufacturers balancing processing quality and cost, producing universal ordinary TPE masterbatch (low-concentration TPS/TPO/TPU masterbatch). It adopts a twin-screw parallel co-rotating structure, specific torque 8-11Nm/cm³, screw diameter 25-65mm, production capacity 50-400kg/h.
The series uses nitrided screws and barrels (surface hardness ≥60 HRC), meeting the needs of ordinary TPE masterbatch processing (pigment content ≤50%). It is equipped with a 4-section temperature control system, simple touch screen operation, easy to learn and master. The ZTE series has a simple structure, ukusetshenziswa kwamandla okuphansi, and low maintenance cost, suitable for small manufacturers, small workshops, and enterprises producing small-batch, multi-variety TPE masterbatch (such as small toys, local household goods).
4.2.5 HTE Series: High Performance and Cost-Effective Integrated Solution.
The HTE series integrates high performance and cost-effectiveness, designed for medium-sized manufacturers upgrading product quality and expanding production scale. It adopts high-torque gearboxes independently developed by Zhuoyue, specific torque 12-14Nm/cm³, screw diameter 35-70mm, production capacity 200-800kg/h.
The series uses bimetallic composite screws and barrels (surface hardness ≥65 HRC), with good wear resistance, suitable for TPU/TPO masterbatch processing. It adopts an optimized screw structure and high-efficiency energy-saving motor, energy consumption reduced by 18%-25% compared with ordinary extruders. The 5-section precise temperature control system and vacuum exhaust device ensure product quality, and the enhanced mixing elements ensure uniform dispersion. The HTE series balances performance and cost, suitable for medium-sized manufacturers producing medium-grade TPE masterbatch (such as automotive interior components, ordinary medical devices, mid-grade wires and cables).
5. Common Problems and Solutions in TPE Masterbatch Twin-Screw Extrusion Processing
In TPE masterbatch processing, ngenxa yezakhiwo ezihlukile zama-TPE (temperature sensitivity, moisture absorption, high viscosity), various problems often occur, affecting product quality and production efficiency. Based on years of experience, Zhuoyue summarizes common problems, analyzes their causes, and provides corresponding solutions to help manufacturers quickly solve production problems.
5.1 Problem 1: Poor Dispersibility, Color Spots and Streaks in Masterbatch
Manifestation: Uneven coloring of masterbatch, obvious pigment agglomerates, color spots and streaks in TPE products, reducing product aesthetics and mechanical properties.
Causes: (1) Raw materials: Pigment particle size is too large, agglomeration is serious; poor compatibility between pigment/carrier and TPE; insufficient dispersant dosage. (2) Premixing: Low mixing speed, short mixing time, uneven premixing. (3) Extrusion parameters: Low screw speed, insufficient shear force; low extrusion temperature, incomplete melting of TPE carrier. (4) Izisetshenziswa: Worn screw mixing elements; blocked die head.
Izixazululo: (1) Optimize raw materials: Select fine-particle pigments (20-40 Imeshi), dry thoroughly; select carrier compatible with TPE; increase dispersant dosage (1%-5% of pigment dosage). (2) Improve premixing: Increase mixing speed to 800-1200 rpm, extend mixing time to 5-10 imizuzu. (3) Adjust extrusion parameters: Increase screw speed (500-800 rpm for high-viscosity TPEs); increase extrusion temperature to ensure complete melting of TPE. (4) Maintain equipment: Replace worn screw elements; clean die head regularly.
5.2 Problem 2: TPE Degradation and Masterbatch Discoloration
Manifestation: Masterbatch discolors (yellowing, darkening), generates peculiar smell; TPE products have reduced elasticity and mechanical strength, even brittle fracture.
Causes: (1) Extrusion temperature is too high, exceeding TPE heat resistance limit. (2) Long material residence time (Ngaphezu kwe 3 imizuzu) in the extruder. (3) Poor equipment cooling, local overheating of the barrel. (4) Raw materials: TPE has poor heat resistance; moisture content is too high (causing TPU hydrolysis).
Izixazululo: (1) Adjust temperature: Reduce mixing/homogenizing section temperature, control within TPE processing range; check temperature sensor accuracy. (2) Shorten residence time: Increase screw speed, reduce screw compression ratio. (3) Maintain cooling system: Clean cooling pipes, replace faulty cooling elements. (4) Optimize raw materials: Select high-temperature resistant TPE; dry raw materials thoroughly (moisture content ≤0.05% for TPU/TPA); add heat stabilizers.
5.3 Problem 3: High Wear of Screw and Barrel
Manifestation: Rapid wear of screw and barrel, reduced shear force and mixing capacity; masterbatch dispersibility decreases, equipment maintenance cost increases.
Causes: (1) Raw materials: High-hardness pigments/additives (such as carbon black, titanium dioxide); large particle size. (2) Extrusion parameters: High screw speed, excessive shear force; high extrusion pressure. (3) Izisetshenziswa: Screw/barrel material has poor wear resistance.
Izixazululo: (1) Optimize raw materials: Select small-particle, low-hardness pigments; crush and sieve raw materials; add lubricants to reduce friction. (2) Adjust parameters: Reduce screw speed and extrusion pressure appropriately. (3) Select high-wear-resistant equipment: Choose Zhuoyue’s HTS PLUS/SUPER/HTE series with bimetallic composite or laser-clad screws/barrels.
5.4 Problem 4: Bubbles in Masterbatch
Manifestation: Bubbles in masterbatch particles, affecting product density and mechanical properties; TPE products have pores and defects.
Causes: (1) Raw materials: High moisture content (ikakhulukazi i-TPU/TPA); izinto eziguquguqukayo kumbala/izithasiselo. (2) Extrusion parameters: Izinga lokushisa eliphansi le-extrusion, ukuncibilika okungaphelele; i-vacuum exhaust enganele. (3) Premixing: Umoya uxubene nengxube ngesikhathi sokuxuba.
Izixazululo: (1) Yomisa kahle izinto zokusetshenziswa: Nweba isikhathi sokumisa, ukwandisa izinga lokushisa lokumisa. (2) Adjust extrusion parameters: Khulisa izinga lokushisa le-extrusion; thuthukisa ukukhishwa kwe-vacuum (i-vacuum degree ≥0.08MPa). (3) Lungiselela premixing: Yehlisa isivinini sokuxuba ngendlela efanele ukuze ugweme ukuxubana komoya; sebenzisa i-mixer evaliwe.
5.5 Problem 5: Uketshezi Lokucubungula Okubi, Ukuvinjwa Kwezisetshenziswa
Manifestation: Ukudlulisa impahla enzima kanye ne-extrusion; ingcindezi ye-extrusion engazinzile; ukufa kwekhanda noma ukuvinjelwa komgodi we-extrusion.
Causes: (1) Raw materials: I-TPE viscosity ephezulu (I-TPV/TPC); okuqukethwe kwe-pigment ephezulu (Ngaphezu kwe 70%); umswakama ophezulu (kubangela i-agglomeration). (2) Extrusion parameters: Izinga lokushisa eliphansi, ukuncibilika okungaphelele; isivinini esiphansi sesikulufa, umthamo onganele wokudlulisa. (3) Izisetshenziswa: Izakhi zokuthutha ezigugile; blocked die head.
Izixazululo: (1) Optimize raw materials: Yehlisa okuqukethwe kwe-pigment; khetha i-TPE ye-viscosity ephansi; dry raw materials thoroughly. (2) Adjust parameters: Khulisa izinga lokushisa le-extrusion; ukwandisa isivinini isikulufa; buyisela ikhanda lokufa ngezimbobo ezinkulu. (3) Maintain equipment: Replace worn conveying elements; clean die head and extrusion cavity regularly.
6. Practical Application Cases of Zhuoyue Extruders in TPE Masterbatch Processing
To verify the performance advantages of Zhuoyue’s extruders in TPE masterbatch processing, this section introduces several practical cases, covering different TPE categories, production scales, nezinkambu zohlelo lokusebenza, demonstrating the targeted solutions provided by Zhuoyue.
6.1 Icala 1: HTS SUPER Series in TPC Masterbatch Processing for Automotive Hoses
Customer Background: A large automotive component manufacturer in Shanghai, China, produces high-temperature resistant TPC hoses for new energy vehicles. The customer needs to produce TPC masterbatch (okuqukethwe kwe-pigment 60%, high-temperature resistant) with requirements of ultra-high dispersibility (no color spots), ukumelana nokushisa (260℃), and batch stability. The original equipment had problems of insufficient torque, unstable temperature control, and poor dispersibility, which could not meet the requirements.
Isixazululo: Zhuoyue recommended the HTS SUPER series extruders (screw diameter 75mm, specific torque 18Nm/cm³) combined with a complete automatic production line, including a high-efficiency dryer, high-speed mixer, and precision granulator, tailored to the customer’s TPC masterbatch processing needs. The core configuration and optimization measures are as follows: Okokuqala, the screw adopts a multi-stage mixing combination design, integrating high-shear kneading elements and dispersing elements to fully break down pigment agglomerates and ensure uniform dispersion of 60% high-concentration pigments in the TPC matrix. The laser-clad screw surface (hardness ≥70 HRC) effectively resists wear caused by high-hardness pigments, extending the service life by more than 3 times compared to the customer’s original equipment. Okwesibili, the barrel is equipped with a double-layer jacket + ukupholisa ukupholisa isakhiwo, nge 6 independent temperature control sections, achieving a temperature control precision of ±1℃. The mixing section temperature is stably controlled at 240-260℃, and the homogenizing section at 230-250℃, strictly matching the TPC processing temperature range to avoid material degradation and pigment discoloration. Okwesithathu, the equipment is equipped with a high-efficiency vacuum exhaust device (vacuum degree adjustable up to 0.09MPa), which effectively removes moisture and volatile substances in the TPC raw materials and masterbatch, completely solving the bubble problem caused by moisture absorption. Ngaphezu kwalokho, the HTS SUPER series is equipped with an intelligent cloud control system, which allows the customer to store the TPC masterbatch processing parameters, call them with one click when switching batches, and monitor production data in real time, improving batch stability and reducing operational errors.
Implementation Effect: Ngemva 1 month of installation and commissioning, the HTS SUPER series extruders officially put into production. The test results show that the TPC masterbatch produced has a mixing uniformity of ≥98%, no color spots or streaks, and the pigment dispersion effect is significantly better than the customer’s original equipment. The masterbatch maintains stable performance after high-temperature processing at 260℃, with no discoloration or degradation, fully meeting the requirements of new energy vehicle automotive hoses. The production capacity reaches 1500kg/h, which is 40% higher than the original equipment, while the energy consumption is reduced by 22%, significantly reducing the customer’s production costs. The wear of screws and barrels is greatly reduced, and the maintenance cycle is extended from 1 month to 6 izinyanga, reducing maintenance costs by more than 50%. The customer’s TPC hoses made of this masterbatch have passed the automotive industry quality certification, with excellent high-temperature resistance and mechanical strength, and have been successfully supplied to major new energy vehicle manufacturers. The customer highly recognized Zhuoyue’s extrusion solution, and subsequently signed a long-term cooperation agreement, purchasing 5 more sets of HTS SUPER series extruders to expand production scale.
6.1 Icala 1: HTS SUPER Series in TPC Masterbatch Processing for Automotive Hoses
Customer Background:
A large automotive component manufacturer in Shanghai, China, produces high-temperature resistant TPC hoses for new energy vehicles. The customer needs to produce TPC masterbatch (okuqukethwe kwe-pigment 60%, high-temperature resistant) with requirements of ultra-high dispersibility (no color spots), ukumelana nokushisa (260℃), and batch stability. The original equipment had problems of insufficient torque, unstable temperature control, and poor dispersibility, which could not meet the requirements.
Isixazululo:
Zhuoyue recommended the HTS SUPER series extruders (screw diameter 75mm, specific torque 18Nm/cm³) combined with a complete automatic production line, including a high-efficiency dryer, high-speed mixer, and precision granulator, tailored to the customer’s TPC masterbatch processing needs. The core configuration and optimization measures are as follows: Okokuqala, the screw adopts a multi-stage mixing combination design, integrating high-shear kneading elements and dispersing elements to fully break down pigment agglomerates and ensure uniform dispersion of 60% high-concentration pigments in the TPC matrix. The laser-clad screw surface (hardness ≥70 HRC) effectively resists wear caused by high-hardness pigments, extending the service life by more than 3 times compared to the customer’s original equipment. Okwesibili, the barrel is equipped with a double-layer jacket + ukupholisa ukupholisa isakhiwo, nge 6 independent temperature control sections, achieving a temperature control precision of ±1℃. The mixing section temperature is stably controlled at 240-260℃, and the homogenizing section at 230-250℃, strictly matching the TPC processing temperature range to avoid material degradation and pigment discoloration. Okwesithathu, the equipment is equipped with a high-efficiency vacuum exhaust device (vacuum degree adjustable up to 0.09MPa), which effectively removes moisture and volatile substances in the TPC raw materials and masterbatch, completely solving the bubble problem caused by moisture absorption. Ngaphezu kwalokho, the HTS SUPER series is equipped with an intelligent cloud control system, which allows the customer to store the TPC masterbatch processing parameters, call them with one click when switching batches, and monitor production data in real time, improving batch stability and reducing operational errors.
Implementation Effect:
Ngemva 1 month of installation and commissioning, the HTS SUPER series extruders officially put into production. The test results show that the TPC masterbatch produced has a mixing uniformity of ≥98%, no color spots or streaks, and the pigment dispersion effect is significantly better than the customer’s original equipment. The masterbatch maintains stable performance after high-temperature processing at 260℃, with no discoloration or degradation, fully meeting the requirements of new energy vehicle automotive hoses. The production capacity reaches 1500kg/h, which is 40% higher than the original equipment, while the energy consumption is reduced by 22%, significantly reducing the customer’s production costs. The wear of screws and barrels is greatly reduced, and the maintenance cycle is extended from 1 month to 6 izinyanga, reducing maintenance costs by more than 50%. The customer’s TPC hoses made of this masterbatch have passed the automotive industry quality certification, with excellent high-temperature resistance and mechanical strength, and have been successfully supplied to major new energy vehicle manufacturers. The customer highly recognized Zhuoyue’s extrusion solution, and subsequently signed a long-term cooperation agreement, purchasing 5 more sets of HTS SUPER series extruders to expand production scale.